Science experiment for students how to make fan on with sell


Science experiment for students how to make fan on with sell 

There are two ways to interpret your question about fans and cells (likely meaning batteries). Here are two science experiment ideas depending on what you meant:

Experiment 1: Powering a Fan with a Battery (Understanding Circuits)

This experiment demonstrates how electricity flows in a circuit to power a device like a fan.

Materials:

Small electric fan (battery operated is ideal, but a motor with blades can also work)

AA batteries (enough to match the fan's voltage requirement)

Battery holder with wires (snapping kind works well)

Electrical tape

Optional: Multimeter (to measure voltage)

Steps:

Make a safe circuit: Adult supervision is recommended as you'll be working with electrical components. Ensure the switch on the fan (if it has one) is off. Connect the red wire from the battery holder to the positive terminal on the fan motor (usually marked with a plus sign). Connect the black wire from the battery holder to the negative terminal on the fan motor (usually marked with a minus sign). You can use electrical tape to secure the connections.

Test the circuit: Insert the batteries into the holder according to their positive and negative markings. If the fan spins, the circuit is working correctly.

Optional: Measure voltage (with adult supervision): If you have a multimeter, set it to measure DC voltage. Touch the red probe to the positive terminal on the fan motor and the black probe to the negative terminal. The multimeter should read a voltage close to the battery voltage (usually 1.5V for a single AA battery).

Explanation:


The batteries provide electrical energy. The wires conduct this energy to the fan motor. The motor converts this electrical energy into mechanical energy, causing the blades to spin.


Experiment 2: How Fan Speed Changes with Battery Power (Understanding Energy)


This experiment explores how the number of batteries affects the speed of a fan, demonstrating the relationship between energy and motion.


Materials:


Small electric fan (battery operated)

AA batteries (several, with varying quantities)

Markers

Tape

Paper

Steps:


Label the batteries: Label each battery with a number (1, 2, 3, etc.) depending on how many batteries you have.

Set up the experiment: On a piece of paper, tape down a starting line. Mark another line a short distance away as the finish line.

Test with different batteries: Insert one battery (battery #1) into the fan and turn it on. Hold the fan just above the starting line, facing the paper. Turn on the fan and record the time it takes a small piece of paper to reach the finish line (measured in seconds). Repeat this test two more times with battery #1 for a total of three trials.

Repeat with more batteries: Repeat steps 3a and 3b, but this time with two batteries (battery #2) inserted in the fan. Then repeat again with three batteries (battery #3), and so on, depending on how many batteries you have.

Analysis:


Compare the times recorded for each number of batteries.  The fan should spin faster with more batteries. This is because more batteries provide more electrical energy, which the motor converts into more mechanical energy to spin the blades faster.


Safety:


Adult supervision is recommended, especially for younger students.

Do not disassemble the fan or motor.

Only use the recommended number of batteries for the fan.


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